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/* ------------------------------------------------------------
* gostring.swg
*
* Support for returning strings from C to Go.
* ------------------------------------------------------------ */
// C/C++ code to convert a memory buffer into a Go string allocated in
// C/C++ memory.
%fragment("AllocateString", "runtime") %{
static _gostring_ Swig_AllocateString(const char *p, size_t l) {
_gostring_ ret;
ret.p = (char*)malloc(l);
memcpy(ret.p, p, l);
ret.n = l;
return ret;
}
%}
// Go code to convert a string allocated in C++ memory to one
// allocated in Go memory.
%fragment("CopyString", "go_runtime") %{
type swig_gostring struct { p uintptr; n int }
func swigCopyString(s string) string {
p := *(*swig_gostring)(unsafe.Pointer(&s))
r := string((*[0x7fffffff]byte)(unsafe.Pointer(p.p))[:p.n])
Swig_free(p.p)
return r
}
%}
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